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ツリーマップの親ノードにラベルを付けようとしていますが、これまでのところ、ツリーマップの個々のリーフにしかアクセスできませんでした。現在、親ノードの名前を出力していますが、現在のように個々の葉ではなく、親ノードを中心にしたいです。

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Sprint","id":237884,"score":86},{"brand":"Samsung Digital Imaging","id":263317,"score":85},{"brand":"Time Warner","id":266908,"score":84},{"brand":"Microsoft Tag","id":277494,"score":84},{"brand":"Samsung Televisions","id":288921,"score":79},{"brand":"Microsoft Visual Studio","id":234168,"score":72},{"brand":"NBC Olympics","id":266564,"score":71},{"brand":"Samsung Mobile USA","id":294087,"score":71},{"brand":"Sony Electronics","id":263313,"score":66},{"brand":"Samsung USA","id":263316,"score":65},{"brand":"Samsung Service","id":288922,"score":63},{"brand":"LG USA Mobile","id":289167,"score":61},{"brand":"Sony PlayStation","id":236075,"score":60},{"brand":"LG Electronics USA","id":288915,"score":58},{"brand":"Microsoft Publisher","id":277505,"score":57},{"brand":"NBC","id":266563,"score":57},{"brand":"Microsoft Office","id":234169,"score":56},{"brand":"Samsung Galaxy Tab","id":294086,"score":56},{"brand":"Microsoft PowerPoint","id":277497,"score":54},{"brand":"Time Warner Cable","id":266909,"score":50},{"brand":"Samsung Notebook","id":289021,"score":48},{"brand":"Dell Spot","id":236265,"score":47},{"brand":"Microsoft Web Platform","id":277504,"score":46},{"brand":"Canon","id":299953,"score":45},{"brand":"Samsung Apps","id":289022,"score":44},{"brand":"Dell Go Green","id":236267,"score":36},{"brand":"Samsung Galaxy S","id":294883,"score":32},{"brand":"Microsoft Access","id":277500,"score":32},{"brand":"Microsoft Visio","id":277498,"score":26},{"brand":"Microsoft Excel","id":277506,"score":25},{"brand":"BlackBerry for AT&T","id":237824,"score":24},{"brand":"IBM Research","id":292838,"score":23},{"brand":"LG-Ericsson USA","id":288916,"score":20},{"brand":"Sony","id":263312,"score":20},{"brand":"Microsoft Word","id":277496,"score":17},{"brand":"Microsoft Learning","id":277503,"score":14},{"brand":"Microsoft Windows Server","id":277501,"score":11},{"brand":"Microsoft Lync","id":277502,"score":11},{"brand":"Dell Deals","id":236268,"score":7},{"brand":"HP","id":292840,"score":2},{"brand":"Dell Outlet","id":236270,"score":0}]}]};

var tree = json.sectors;
var ids = json.ids;
arr=[];
sRank={};
function active(d, v) {
            d.active = v; 
            if (d.parentNode) {
                active(d.parentNode, v);
                }
}

// used for alpha
sRank={};
for(var i in json.eranks)
{
    var sector = json.eranks[i].sector;
    sRank[sector]=[];
    for(var p in json.eranks[i].pages){
        sRank[sector].push(json.eranks[i].pages[p].brand)
    }
}
        var nodes = pv.dom(tree).root("tree").nodes();
        color = pv.Colors.category20().by(function (d) { return d.parentNode.nodeName });


        var vis = new pv.Panel()
                 .width(660)
                 .height(900);

        var treemap = vis.add(pv.Layout.Treemap)
                 .nodes(nodes);



        treemap.leaf.add(pv.Panel)
                 .fillStyle(function (d) { return color(d).alpha(1-sRank[d.parentNode.nodeName].indexOf(d.nodeName)/sRank[d.parentNode.nodeName].length) })
                 .strokeStyle("#fff")
                 .lineWidth(1)
                 .antialias(false)
                 .cursor("pointer")                  
                 .title(function(d) { return d.nodeName})
                 .event("click", function (d) {alert(d.parentNode.nodeName); });


       treemap.leaf.add(pv.Label)
            .font("20px sans-serif")
            .textBaseline("bottom")
            .text(function(d) { middle=Math.round(sRank[d.parentNode.nodeName].length/2)-1; 
            if(sRank[d.parentNode.nodeName].indexOf(d.nodeName) == middle) 
                {return d.parentNode.nodeName}}
            );

        vis.render();
4

1 に答える 1

1

ここでの最良のオプションはtreemap.label、ノードごとに自動的に中央に配置される を使用することです。デフォルトでtreemap.labelは、.visibleプロパティは次のように設定されています。

.visible(function(n) { return !n.firstChild; })

リーフ ノードのラベルのみを表示します。ただし、.visibleツリーマップを追加したら、自分でプロパティを設定し、親ノードのみを表示するように変更できます (親ノードも持っていることを確認する必要があります。そうしないと、ルート ノードに余分な不要なラベルが付けられます)。 ):

treemap.label
    .visible(function(d) { return d.firstChild && d.parentNode });

あなたの例では、これをラベルにチェーンできるので、完全なスニペットは次のようになります。

treemap.label
    .visible(function(d) { return d.firstChild && d.parentNode })
  .add(pv.Label)
    .font("20px sans-serif")
    .textBaseline("bottom")
    .text(function(d) {
        return d.nodeName
    });

jsFiddle の作業: http://jsfiddle.net/nrabinowitz/T3fnT/1/

于 2011-10-13T21:07:41.980 に答える